"You can't teach an old dog new tricks"
Here are some idioms that all use the word new. Read them through and then complete the exercise below them:
To start behaving in a better way:
'I heard that's she's turned over a new leaf and stopped drinking alcohol.'
To have a new lease of life means that you become more energetic and active than before:
'Having grandchildren has given him a new lease of life.'
A new broom is the new leader of a group or organisation who makes a lot of changes:
'The new broom made a lot of changes to our department and things are now better than ever.'
When someone goes to pastures new they are leaving their job or home to go to a new one:
'After 5 years with our company Joe has decided to go to pastures new.'
This expression means that it is difficult to get someone to change the way they do something after they have been doing it a different way for years.
'I can't get my grandmother to use a computer. I guess you can't teach an old dog new tricks!'
Link: Idioms for dangerous situations